if (@available(iOS 13.0, *)) {

                UINavigationBarAppearance *appearance = [UINavigationBarAppearance new];

                UIImage *backGroundImage = [UIImage imageNamed:@"home_nav_imgV"];

                backGroundImage = [backGroundImage resizableImageWithCapInsets:UIEdgeInsetsZero resizingMode:UIImageResizingModeStretch];

                appearance.backgroundImage = backGroundImage;

                appearance.shadowColor = [UIColor clearColor];

                appearance.shadowImage = [UIImage new];

                self.navigationController.navigationBar.standardAppearance = appearance;

                self.navigationController.navigationBar.scrollEdgeAppearance = self.navigationController.navigationBar.standardAppearance;

            } else {

                UIImage *backGroundImage = [UIImage imageNamed:@"home_nav_imgV"];

                backGroundImage = [backGroundImage resizableImageWithCapInsets:UIEdgeInsetsZero resizingMode:UIImageResizingModeStretch];

                [self.navigationController.navigationBar setBackgroundImage:backGroundImage forBarPosition:UIBarPositionAny barMetrics:UIBarMetricsDefault];

                [self.navigationController.navigationBar setShadowImage:[UIImage new]];

            }